[Pre-drilled Mounting Holes]Our Nut and Bolt is designed with pre-drilled mounting holes on the top, making it easy to hang it when you're done using it or attach it to your toolbox for easy access when you need it [Wide Range of Size Checking]Our Nut and Bolt Thread Detector can help you identify 34 hole distinct sizes of nuts and bolts, featuring metric thread sizes spanning , which can help you identify different sizes of nuts and bolts quickly and easil [Clear and Laser Scale]The Bult and nut gauge features laser-etched inch and centimeter scales on the edges, which are clear and easy to compare, and assist you in quickly and easily identifying the size of your bolts and nuts [Meeting Your Needs]Whether you are a professional or an enthusiastic , you don't need to go to the for comparison, this bolt and nut checker plate can help you quickly and accurately compare the exact size; and it 't get tangled up like the previous coil-type identifiers, which affects the use, Manufacturer: Littimoon